Naraku 09310930 Cylinder-piston kitRef : NARK00074A / 09310930

NARAKU Cylinder Kit V.2 72 cm³ (ref. NK100.47)

Designed for GY6 139QMB engines and certain 50 cm³ 2V (Kymco), this NARAKU V.2 cylinder kit offers a complete solution for those looking to refurbish or modify the bore while maintaining daily usability. The kit includes all the necessary parts for a clean and quick replacement.

• CNC machined piston with additional oil grooves in the skirt to better retain oil and promote lubrication between the piston and cylinder.
• Molybdenum coating on the piston to facilitate bedding in and limit wear during the initial mileage.
• Two oil passages and machined bearing grooves to ensure oil supply to the piston pin.
• Calibrated compression ratio for daily use, compatible with a carburation close to the original.

The kit can be mounted with the original carburettor, but changing the main jet is recommended to adjust the carburation after modifying the engine displacement. Note: for SYM scooters, this kit is only suitable for GY6 139QMB engines — it is not compatible with XS1P139QMB, AV05W, AW05W engines or certain models like the Sym Symply 2.

Universe: Enduro, Urban. Manufacturer reference: NK100.47. Ideal for rebuilding or optimizing scooters such as KYMCO Agility 50, Generic Pandora 50 or Kreidler Flory 50 Classic equipped with the GY6 block.